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Millicom Int. Cellular SDB Interim / Quarterly Report 2004

May 28, 2004

2984_ffr_2004-05-28_5c1aeee9-6ffb-4d2e-a830-7c2b1bd6f9c3.zip

Interim / Quarterly Report

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FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549

Report of Foreign Issuer

Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934

For May 28, 2004

Commission File Number: 000-22828

MILLICOM INTERNATIONAL CELLULAR S.A. 75 Route de Longwy L-8080 Bertrange Grand-Duchy of Luxembourg

(Address of principal executive offices)

Indicate by check mark whether the registrant files or will file annual reports under cover of Form 20-F or Form 40-F.

Form 20-F ý Form 40-F o

Indicate by check mark if the registrant is submitting the Form 6-K in paper as permitted by Regulation S-T Rule 101(b)(1):

Indicate by check mark if the registrant is submitting the Form 6-K in paper as permitted by Regulation S-T Rule 101(b)(7):

Indicate by check mark whether the registrant by furnishing the information contained in this Form is also thereby furnishing the information to the Commission pursuant to Rule 12g3-2(b) under the Securities Exchange Act of 1934.

Yes o No ý

If "Yes" is marked, indicate below the file number assigned to the registrant in connection with Rule 12g3-2(b): 82-

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The information contained in this report is incorporated by reference into registration statement No. 333-111779 and registration statement No. 333-112948.

ITEM 1. FINANCIAL STATEMENTS

Millicom International Cellular S.A. and subsidiaries ("MIC" or the "Group") unaudited interim condensed consolidated financial statements as of March 31, 2004.

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TOC_END

MILLICOM INTERNATIONAL CELLULAR S.A. Condensed Consolidated Balance Sheets As of March 31, 2004 and December 31, 2003

User-specified TAGGED TABLE

Notes March 31, 2004 (Unaudited) December 31, 2003
(US$'000)
ASSETS
NON-CURRENT ASSETS
Intangible assets
Goodwill, net of accumulated amortization of $24,197 and $22,374 3 43,924 49,578
Licenses, net of accumulated amortization of $72,081 and $65,401 31,544 30,889
Other intangibles, net of accumulated amortization of $3,804 and $3,732 5,417 5,148
Property, plant and equipment, net of accumulated depreciation of $591,046 and $545,864 522,042 487,746
Financial assets
Investment in Tele2 AB shares 4 412,934 479,040
Investment in other securities 25,424 25,397
Investment in associates 1,458 1,340
Pledged deposits 24,639 31,530
Deferred taxation 5,146 5,226
TOTAL NON-CURRENT ASSETS 1,072,528 1,115,894
CURRENT ASSETS
Investment in other securities 15,291 15,291
Inventories 12,474 10,941
Trade receivables, less allowance for receivable impairment of $40,180 and $36,199 135,690 113,750
Amounts due from Joint Ventures 10,400 13,137
Amounts due from other related parties 3,075 2,905
Prepayments and accrued income 27,366 19,739
Other current assets 59,476 49,583
Time deposits 98,462 32,880
Cash and cash equivalents 96,889 148,829
TOTAL CURRENT ASSETS 459,123 407,055
TOTAL ASSETS 1,531,651 1,522,949

end of user-specified TAGGED TABLE

The accompanying notes are an integral part of these condensed financial statements

2

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MILLICOM INTERNATIONAL CELLULAR S.A. Condensed Consolidated Balance Sheets As of March 31, 2004 and December 31, 2003

User-specified TAGGED TABLE

Notes March 31, 2004 (Unaudited) December 31, 2003
(US$'000)
SHAREHOLDERS' EQUITY AND LIABILITIES
SHAREHOLDERS' EQUITY 5
Share capital and premium 268,044 239,876
Treasury stock (8,833 ) (8,833 )
2% PIK Notes—equity component 9,485 16,006
Legal reserve 4,256 4,256
Retained losses brought forward (267,287 ) (446,110 )
Profit for the period/year 14,730 178,823
Currency translation reserve (70,221 ) (69,198 )
TOTAL SHAREHOLDERS' EQUITY (49,826 ) (85,180 )
Minority interest 30,456 26,571
LIABILITIES
Non-current Liabilities
Debt and other financing
10% Senior Notes 6 536,244 536,036
2% PIK Notes—Debt component 6 31,001 50,923
5% Mandatory Exchangeable Notes—Debt component 6 314,881 327,635
Embedded derivative on the 5% Mandatory Exchangeable Notes 6 51,757 103,457
Other debt and financing 6 112,297 126,150
Deferred taxation 36,460 33,944
Total non-current liabilities 1,082,640 1,178,145
Current Liabilities
Other debt and financing 6 123,743 132,664
Trade payables 147,129 112,764
Amounts due to other related parties 2,124 608
Accrued interest and other expenses 56,620 44,673
Other current liabilities 138,765 112,704
Total current liabilities 468,381 403,413
TOTAL LIABILITIES 1,551,021 1,581,558
TOTAL SHAREHOLDERS' EQUITY AND LIABILITIES 1,531,651 1,522,949

end of user-specified TAGGED TABLE

The accompanying notes are an integral part of these condensed financial statements

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TOC_END

MILLICOM INTERNATIONAL CELLULAR S.A. Condensed Consolidated Statements of Profit and Loss For the Three months ended March 31, 2004 and March 31, 2003

User-specified TAGGED TABLE

Notes Three months ended March 31, 2004 (Unaudited) Three months ended March 31, 2003 (Unaudited)
(US$'000)
Revenues 7 213,859 144,719
Cost of sales (84,150 ) (57,825 )
Gross profit 129,709 86,894
Sales and marketing (28,790 ) (17,956 )
General and administrative expenses (29,330 ) (26,684 )
Gain from sale of subsidiaries and joint ventures, net 30 1,818
Other operating expenses (9,522 ) (7,570 )
Operating profit 62,097 36,502
Valuation movement on investment in securities 4 (66,106 ) 37,600
Fair value result on financial instruments 6 51,700 —
Profit from associates 134 45
Interest expense (27,349 ) (38,902 )
Interest income 1,574 1,129
Exchange gain, net 14,424 3,754
Profit before taxes and minority interest 36,474 40,128
Charge for taxes 8 (16,702 ) (10,198 )
Profit before minority interest 19,772 29,930
Minority interest (5,042 ) (3,704 )
Net profit for the period 7 14,730 26,226
Basic earnings per common share (US$) 11 0.22 0.40
Diluted earnings per common share (US$) 11 0.20 0.40

end of user-specified TAGGED TABLE

The accompanying notes are an integral part of these condensed financial statements

4

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MILLICOM INTERNATIONAL CELLULAR S.A. Condensed Consolidated Statements of Cash Flows For the Three months ended March 31, 2004 and March 31, 2003

User-specified TAGGED TABLE

Three months ended March 31, 2004 (Unaudited) Three months ended March 31, 2003 (Unaudited)
(US$'000)
Net cash provided by operating activities 75,405 61,984
Cash flows from investing activities
Proceeds from the disposal of subsidiaries and joint ventures, net of cash disposed — 7,452
Proceeds from the disposal of investments in securities — 1,064
Purchase of licenses and other intangible assets (3,453 ) (1,030 )
Purchase of property, plant and equipment (39,003 ) (22,635 )
Decrease/(Increase) in amounts due from joint ventures 3,040 (1,496 )
Decrease/(increase) in pledged deposits 7,940 9,362
Decrease/(increase) in time deposits (65,567 ) (30,948 )
Cash from other investing activities — 97
Net cash used by investing activities (97,043 ) (38,134 )
Cash flows from financing activities
Proceeds from the issuance of debt and other financing 13,226 69,324
Repayment of debt and other financing (39,720 ) (83,235 )
Payment of dividends to minority interests (4,200 ) —
Payments to shareholders — (3,005 )
Cash provided by other financing activities 334 —
Net cash used by financing activities (30,360 ) (16,916 )
Effect of exchange rate changes on cash balance 58 173
Net increase (decrease) in cash and cash equivalents (51,940 ) 7,107
Cash and cash equivalents, beginning 148,829 70,451
Cash and cash equivalents, ending 96,889 77,558
Non-cash investing and financing activities
Investing activities:
Revaluation of marketable securities (66,106 ) 37,600
Financing activities:
Issuance of capital 27,834 —

end of user-specified TAGGED TABLE

The accompanying notes are an integral part of these condensed financial statements

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MILLICOM INTERNATIONAL CELLULAR S.A. Condensed Consolidated Statements of Changes in Shareholders' Equity For the Three months ended March 31, 2004 and 2003

User-specified TAGGED TABLE

Three months ended March 31, 2004 (Unaudited) Three months ended March 31, 2003 (Unaudited)
(US$'000)
Shareholders' equity at January 1 (85,180 ) (295,259 )
Profit/Loss for the period 14,730 26,226
Shares issued via the exercise of stock options 333 —
Conversion of 2% PIK Notes 21,314 —
Movement in currency translation reserve (1,023 ) (3,745 )
Shareholders' equity at March 31 (49,826 ) (272,778 )

end of user-specified TAGGED TABLE

The accompanying notes are an integral part of these condensed financial statements

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TOC_END

MILLICOM INTERNATIONAL CELLULAR S.A. Notes to the Interim Condensed Consolidated Financial Statements As of March 31, 2004

1. ORGANIZATION

Millicom International Cellular S.A. (the "Company"), a Luxembourg Société Anonyme, and its subsidiaries, joint ventures and associates (the "Group" or "MIC") is a global operator of cellular telephone services in the world's emerging markets. As of March 31, 2004, MIC had interests in 16 cellular operations in 15 countries focusing on emerging markets in Asia, Latin America and Africa. The Company's shares are traded on the NASDAQ National Market under the symbol MICC and on the Luxembourg and Stockholm stock exchanges. The Company has its registered office at 75, Route de Longwy, L-8080, Bertrange, Grand-Duchy of Luxembourg.

MIC's cellular interests ("MIC Cellular") operate through strategic entities operating in major geographic regions of the world. MIC's cellular interests in South East Asia include operations in Cambodia, Lao and Vietnam; in South Asia they include operations in Pakistan and Sri Lanka; in Central America they include operations in El Salvador, Guatemala and Honduras; in South America they include operations in Bolivia and Paraguay and in Africa they include operations in Ghana, Mauritius, Senegal, Sierra Leone and Tanzania.

The Group was formed in December 1990 when Industriförvaltnings AB Kinnevik ("Kinnevik"), a company established in Sweden, and Millicom Incorporated ("Millicom"), a corporation established in the United States of America, contributed their respective interests in international cellular joint ventures to form the Group. During 1992, the Group was restructured under a new ultimate parent company, maintaining the same name. On December 31, 1993, Millicom was merged ("the Merger") into a wholly-owned subsidiary of MIC, MIC-USA Inc ("MIC-USA") a Delaware corporation, and the outstanding shares of Millicom's common stock were exchanged for approximately 46.5% of MIC's common stock outstanding at that time.

2. SUMMARY OF CONSOLIDATION AND ACCOUNTING POLICIES

The interim condensed consolidated financial statements of the Group are unaudited. They are presented in US dollars and have been prepared in accordance with International Accounting Standard (IAS) No.34, Interim Financial Reporting as published by the International Accounting Standards Board. Certain information and disclosures normally included in financial statements prepared in accordance with International Financial Reporting Standards have been condensed or omitted pursuant to such rules and regulations. In the opinion of management, the interim financial statements reflect all adjustments that are necessary for a proper presentation of the results for interim periods. All adjustments made were normal recurring accruals. MIC's operations are not affected by significant seasonal or cyclical patterns. The financial statements should be read in conjunction with the audited consolidated financial statements as of December 31, 2003.

The preparation of the financial statements in accordance with IFRS requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the accounts and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates.

The interim consdensed consolidated financial statements are prepared in accordance with consolidation and accounting policies consistent with the consolidated financial statements as of December 31, 2003.

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3. ACQUISITION OF TANZANIA

In February 2004, MIC acquired an additional 25.02% in the capital of its operation in Tanzania, Millicom Tanzania, for a total consideration of $1,052,000. This acquisition resulted in a negative goodwill of $3,832,000, which will be amortized over the remaining life of the license held by MIC Tanzania. MIC's total interest in the operation amounts to 84%. MIC Tanzania is fully consolidated since February 2004.

The following unaudited pro forma condensed combined financial information represent the consolidated figures of MIC including MIC Tanzania as if MIC Tanzania was consolidated for these periods and is presented for illustrative purposes only. These figures are not necessarily indicative of the operating results or financial positions that would have occurred if the acquisition of MIC Tanzania Ltd had been consummated on January 1, 2003 and 2004 respectively, nor is it necessarily indicative of future operating results or financial position of the combined company. The information below is based upon MIC's and MIC Tanzania's historical IFRS financial information. Pro forma net profit (loss) includes pro forma adjustments for interest and amortization and depreciation of assets adjusted to the accounting base recognized for each in the acquisition:

User-specified TAGGED TABLE

Pro forma under IFRS March 31, 2004 (Unaudited) March 31, 2003 (Unaudited)
(U.S.$'000)
Total revenues 215,215 148,694
Net profit for the period 14,814 26,287
Basic earnings per share 0.22 0.40
Diluted earnings per share 0.20 0.40
Shares used to compute basic earnings per share 65,963 65,136
Shares used to compute diluted earnings per share 79,930 65,136

end of user-specified TAGGED TABLE

4. INVESTMENT IN SECURITIES

Following a decrease in the market value of the Tele2 AB shares in the three-month period ended March 31, 2004, an amount of $(66,106,000) has been charged to the profit and loss under the caption "Valuation movement on investment in securities".

5. SHAREHOLDERS' EQUITY

At December 31, 2003, the total subscribed and fully paid-in share capital and premium amounted to $239,876,270 consisting of 66,319,940 registered common shares at a par value of $1.50 each.

During the first quarter of 2004, holders of 2% PIK Notes converted an aggregate amount of $25,500,000 of 2% PIK Notes into 9,488,358 shares of MIC common stock.

As of March 31, 2004, following the above conversion of 2% PIK notes and the exercise of stock options during the first quarter, the total subscribed and fully paid-in share capital and premium amounted to $268,043,600 consisting of 75,897,186 registered common shares with a par value of $1.50 each.

6. DEBT AND FINANCING

10% Senior Notes

On November 24, 2003, MIC issued $550 million aggregate principal amount of 10% Senior Notes (the "10% Senior Notes") due on December 1, 2013. The 10% Senior Notes bear interest at 10% per annum, payable semi-annually in arrears on June 1 and December 1, beginning on June 1, 2004. Interest has been accrued from November 24, 2003 at an effective interest rate of 10.7%.

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The 10% Senior Notes are general unsecured obligations of MIC and rank equal in right of payment with all future unsecured and unsubordinated obligations of MIC. The 10% Senior Notes are not guaranteed by any of MIC's subsidiaries or affiliates, and as a result are structurally subordinated in right of payment to all indebtedness of such subsidiaries and affiliates.

As of March 31, 2004, the carrying amount of the 10% Senior Notes is $536,244,000.

2% PIK Notes

The 2% PIK Notes mature on June 1, 2006. The 2% PIK Notes bear interest at a rate of 2%, payable at the option of MIC, in either additional 2% PIK Notes or in cash, semi-annually in arrears on June 1 and December 1. The difference between the initial carrying amount of the debt component of the 2% PIK Notes and its nominal amount accretes at an effective interest rate of 11%.

The 2% PIK Notes are convertible at any time, at the option of the holder, into MIC common stock at a conversion price of $2.69 (price after stock split) per share of common stock. At the maturity of the 2% PIK Notes, MIC may, at its option, pay all or a portion of the then outstanding principal amount in cash or in shares of its common stock. MIC may redeem the 2% PIK Notes at any time, in whole or in part, prior to June 1, 2004, at a price equal to 102.25% of their principal amount, and thereafter at a price equal to their principal amount. The 2% PIK Notes are senior unsecured obligations and rank senior in right of payment to all MIC's subordinated indebtedness. The 2% PIK Notes are unconditionally and irrevocably guaranteed by Millicom International Operations B.V.

During the first quarter of 2004, holders of 2% PIK Notes converted an aggregate amount of $25,500,000 of 2% PIK Notes into 9,488,358 shares of MIC common stock. As of March 31, 2004, the debt component of the 2% PIK Notes amounted to $31,001,000. On April 26, 2004 MIC called the entire outstanding amount of 2% PIK Notes Due 2006 in an aggregate principal amount of approximately $160,000 for redemption in cash in accordance with the terms of the Indenture covering the 2% PIK Notes. An amount of $63,371,000 out of the total $63,531,000 2% Notes was converted into MIC shares before April 26, 2004. Following these conversions, the total number of outstanding MIC shares is 89,638,927 shares with a par value of $1.50 each.

5% Mandatory Exchangeable Notes

On August 7, 2003, Millicom Telecommunications S.A., MIC's wholly-owned subsidiary, issued for an aggregate value of SEK 2,555,994,000 (approximately $310 million, at the August 2003 Exchange Rate), Mandatory Exchangeable Notes (the "5% Mandatory Exchangeable Notes"), which are exchangeable into Tele2 AB series B shares.

The 5% Mandatory Exchangeable Notes bear interest on the U.S. dollar equivalent amount of each note at a rate of 5% per annum payable semi-annually on February 7 and August 7 of each year. The effective interest rate is 8.45%. As of March 31, 2004 the carrying amount of the 5% Mandatory Exchangeable Notes net of unamortized financing fees was $314,881,000.

The 5% Mandatory Exchangeable Notes include an embedded derivative, which is valued separately. The embedded derivative, which reflects MIC's limited right to participate in the increase in value of the Tele2 shares, is recorded at fair value, taking into account time and volatility factors. As of March 31, 2004, the fair value of the embedded derivative amounted to $51,757,000, with the variation in fair value for the three months ended March 31, 2004 amounting to $51,700,000 recorded under the caption "Fair value result on financial instruments".

9

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Other debt and financing

The total amount of other debt and financing is repayable as follows:

User-specified TAGGED TABLE

As at March 31, 2004 (Unaudited) As at December 31, 2003
(U.S.$'000)
Due within:
One year 123,743 132,664
One – two years 43,103 51,622
Two – three years 32,180 35,889
Three – four years 13,802 13,964
Four – five years 1,524 1,601
After five years 21,688 23,074
Total debt, net 236,040 258,814

end of user-specified TAGGED TABLE

In the normal course of business, MIC Group Companies have issued corporate guarantees to secure some of the obligations of some of its operations under bank, lease and supplier's financing agreements for other group companies. The table below describes, for each operation, the outstanding amount under the guarantees and the remaining terms of the guarantees. Amounts covered by bank guarantees are recorded in the condensed consolidated balance sheet under the caption "Other debt and financing".

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Bank and other financing Guarantees (2) Terms as at March 31, 2004 Maximum exposure Lease guarantees Terms as at March 31, 2004 Maximum exposure Suppliers' Guarantees (3) Terms as at March 31, 2004 Maximum exposure Total Outstanding Total Exposure Liability
(US$'000) (US$'000) (US$'000) (US$'000) (US$'000) (US$'000) (US$'000) (US$'000) (US$'000)
MIC Latin America
Argentina 60 Due within 1 year 5,100 50 Due within 1 year 850 110 5,950 164
Bolivia 29,599 0-2 years 47,261 29,599 47,261 35,171
Paraguay 125 Due within 1 year 125 125 125 6,986
Peru 0 Due within 1 year 0 600 more than 5 years 600 600 600 600
El Salvador(1) 45,104 more than 5 years 52,604 45,104 52,604 64,798
Guatemala 38 more than 5 years 38 38 38 21,688
MIC Asia
Pakistan 10,364 more than 5 years 19,816 13,840 0-3 years 22,800 24,174 42,616 50,100
Cambodia 2,508 0-2 years 13,923 4,657 0-2 years 4,657 7,165 18,580 7,165
Sri Lanka 7,856 more than 5 years 23,576 1,123 3-4 years 1,151 8,979 24,727 15,418
Vietnam 2,109 more than 5 years 2,109 2,109 2,109 12,891
Lao PDR 826 2-3 years 1,653 826 1,653 5,435
Total guarantees 98,589 166,205 50 850 20,220 29,208 118,829 196,263 220,416

end of user-specified TAGGED TABLE (1) Operation reconsolidated since September 15, 2003 (2) The guarantee can recover the outstanding amounts of the underlying loans in the case of non payment from MIC Group company guarantor (3) The guarantee can recover the outstanding amounts of the underlying supplier financing in the case of non payment from MIC Group company guarantor

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7. SEGMENTAL REPORTING

In the first quarter of 2004 MIC changed its segmental reporting to reflect the five operational clusters in the Group. These are South East Asia, South Asia, Central America, South America and Africa.

Revenues

User-specified TAGGED TABLE

Three months ended March 31, 2004 (Unaudited) Three months ended March 31, 2003 (Unaudited)
(US$'000)
South East Asia 55,743 41,165
South Asia 30,608 23,099
Asia 86,351 64,264
Central America 68,784 35,221
Of which divested — 5,926
South America 25,014 23,977
Latin America 93,798 59,198
Africa 31,672 17,992
Other 2,038 3,265
Of which divested — 90
Total revenues 213,859 144,719

end of user-specified TAGGED TABLE

Segmental result

User-specified TAGGED TABLE

Three months ended March 31, 2004 (Unaudited) Three months ended March 31, 2003 (Unaudited)
(US$'000)
South East Asia 16,302 14,265
South Asia 5,283 3,988
Asia 21,585 18,253
Central America 17,054 2,597
Of which divested — (2,218 )
South America 1,186 17,791
Latin America 18,240 20,388
Africa 5,787 1,361
Other (595 ) (101 )
Of which divested — 1
Unallocated items (25,245 ) (9,971 )
Profit before minority interest 19,772 29,930
Minority interest (5,042 ) (3,704 )
Net profit for the period 14,730 26,226

end of user-specified TAGGED TABLE

Total assets in Africa as at March 31, 2004 were $143,310,000 (December 31, 2003: 119,630,000). The increase was mainly due to the full consolidation of MIC's operations in Tanzania as from February 2004.

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8. TAXES

Group taxes are comprised of income taxes of profitable subsidiaries and joint ventures, after allowance of losses brought forward from previous years. The Company is subject to taxes applicable to a Luxembourg Société Anonyme. Due to losses incurred and brought forward, no taxes based on Luxembourg-only income have been computed for the three-month periods ended March 31, 2004 and 2003.

9. JOINT VENTURES

The following amounts have been proportionally consolidated into the Group accounts representing the Group's share of revenues, cost of sales, net profit from continuing operations and net profit in the Group's ventures:

User-specified TAGGED TABLE

Three months ended March 31, 2004 (Unaudited) Three months ended March 31, 2003 (Unaudited)
(US$'000)
Revenues 53,742 48,756
Cost of sales (13,926 ) (12,481 )
Net profit from continuing operations 13,785 7,913
Net profit 13,785 7,913

end of user-specified TAGGED TABLE

10. COMMITMENTS AND CONTINGENCIES

The Company and its operations are contingently liable with respect to lawsuits and other matters that arise in the normal course of business. As of March 31, 2004, the total value of cases against MIC operations was $37,049,000 of which $12,838,000 had been provided in the consolidated balance sheet. Management is of the opinion that while it is impossible to ascertain the ultimate legal and financial liability with respect to these contingencies, the ultimate outcome of these contingencies is not anticipated to have a material effect on the Group's financial position and operations.

Mach

In November 2002, MIC completed the sale of Multinational Automatic Clearing House S.A. ("MACH"). Following examination of the books and records of MACH subsequent to the purchase, the buyers have claimed a reduction in the purchase price to reflect a claimed lower balance sheet value, as per the terms of the purchase agreement. MIC's management is currently examining this claim but does not expect there to be a significant impact on the Group's consolidated financial statements.

Letters of support

In the normal course of business, the Company issues letters of support to various companies and joint ventures within the Group.

Capital Commitments

As of March 31, 2004, we had commitments to purchase within one year network equipment, land and buildings and other fixed assets with a value of $109,328,000 from a number of suppliers.

13

ZEQ.=2,SEQ=14,EFW="2137579",CP="MILLICOM INT CELLULAR S.A.",DN="1",CHK=103376,FOLIO='13',FILE='DISK013:[04LON6.04LON1716]DG1716A.;11',USER='GNEWBUR',CD='28-MAY-2004;15:42'

Operational environment

MIC has operations in emerging markets, including Asia, Latin America and Africa where the regulatory, political, technological and economic environments are evolving. As a result, there are uncertainties that may affect future operations, the ability to conduct business, foreign exchange transactions and debt repayments and which may impact upon agreements with other parties. In the normal course of business, MIC is involved in discussions regarding taxation, interconnect and tariff arrangements, which can have a significant impact on the long-term economic viability of its operations. In management's opinion, the current status and anticipated evolution of the regulatory, political, technological and economic environments as well as its business arrangements with third parties in countries in which MIC has operations will not materially negatively impact MIC's financial position or operations.

New licenses

The Company continues to review options to acquire additional cellular telephone licenses in various countries.

Dividends

The ability of the Company to make dividend payments is subject to, among other things, the terms of the indebtedness, local legal restrictions and the ability to repatriate funds from MIC's various joint ventures.

11. EARNINGS PER SHARE

Earnings per common share are comprised as follows:

User-specified TAGGED TABLE

Three months ended March 31, 2004 (Unaudited) Three months ended March 31, 2003 (Unaudited)
Net profit attributable to shareholders (US$'000) 14,730 26,226
Weighted average number of shares outstanding during the period (in '000) 65,963 65,136
Basic earnings per share (US$) 0.22 0.40
Net profit attributable to shareholders (US$'000) 14,730 26,226
Interest expense on convertible debt (US$'000) 1,553 —
Net profit used to determine diluted earnings per share (US$'000) 16,283 26,226
Weighted average number of shares outstanding during the period (in '000) 65,963 65,136
Adjustments for
Assumed conversion of convertible debt (in '000) (i) 13,801 —
Share options (in '000) (ii) 166 —
Weighted average number of shares and potential dilutive shares outstanding during the period (in '000) 79,930 65,136
Diluted earnings per share (US$) 0.20 0.40

end of user-specified TAGGED TABLE (i) The number of shares for the assumed conversion of convertible debt represents the weighted average number of convertible shares in the period that would result if the remaining principal amount of the 2% PIK Notes had been converted into MIC's common shares on January 1, 2004. (ii) As of March 31, 2004, the Group had 1,263,348 (March 31, 2003: 1,537,864) stock options that were not included in the computation of diluted earnings per share because to do so would have been anti-dilutive for the period presented.

14

ZEQ.=3,SEQ=15,EFW="2137579",CP="MILLICOM INT CELLULAR S.A.",DN="1",CHK=816926,FOLIO='14',FILE='DISK013:[04LON6.04LON1716]DG1716A.;11',USER='GNEWBUR',CD='28-MAY-2004;15:42' THIS IS THE END OF A COMPOSITION COMPONENT

12. RECONCILIATION TO U.S. GAAP

The interim condensed consolidated financial statements of the Group have been prepared in accordance with International Financial Reporting Standards ("IFRS"). If the interim condensed consolidated financial statements had been prepared under accounting principles generally accepted in the United States of America ("U.S. GAAP") the following principal differences would arise:

  1. On March 31, 2004 MIC adopted Financial Interpretation No. 46 (FIN 46), Consolidation of Variable Interest Entities . FIN 46 generally applies to all business enterprises and all arrangements used by business enterprises, and it requires that a business enterprise identify all its Variable Interest Entities ("VIEs"). VIEs are those entities possessing certain characteristics, which indicate either a lack of equity investment to cover expected losses of the entity or a lack of controlling financial interest by an investor. The party that absorbs a majority of the entity's expected losses, receives a majority of its expected residual returns, or both, as a result of holding variable interests is deemed to be the Primary Beneficiary and must consolidate the VIE. Upon adoption of FIN 46 on March 31, 2004 for entities held prior to January 31, 2003, MIC started consolidating its interest in the following VIEs: (i) Cam GSM Company Limited ("Cam GSM"), (ii) Royal Telecam International Limited ("Telecam"), (iii) Millicom Argentina S.A. and (iv) Comunicaciones Celulares S.A. The VIEs under (i) to (iv), collectively, are referred to as the "Joint Ventures interests". Under IFRS, the Joint Ventures interests are proportionally consolidated. In addition, Great Universal Inc. ("GU") and Modern Holdings ("Modern"), which were consolidated under U.S. GAAP before the adoption date of FIN 46 (see Item 13), are variable interest entities, which continue to be consolidated under FIN 46. For IFRS, GU and Modern are not consolidated. The adoption of FIN 46 did not lead to the deconsolidation of any interests previously consolidated under U.S. GAAP.

User-specified TAGGED TABLE

Under IFRS (Unaudited) Revenue Operating Profit Total assets Maximum Exposure to loss
(US$'000)
Telefonica Celular (Honduras) 27,013 12,217 59,428 14,929

end of user-specified TAGGED TABLE

15

ZEQ.=1,SEQ=16,EFW="2137579",CP="MILLICOM INT CELLULAR S.A.",DN="1",CHK=591472,FOLIO='15',FILE='DISK013:[04LON6.04LON1716]DH1716A.;18',USER='GNEWBUR',CD='28-MAY-2004;15:43' 2. Prior to the adoption date of FIN 46 on March 31, 2004 (as it relates to entities created prior to January 31, 2003) MIC's interests in joint ventures were accounted for under the equity method under U.S. GAAP. Summarized below are the adjustments to the profit and loss account that would have been recorded under U.S. GAAP for additional losses recorded by MIC above those recorded for IFRS due to MIC's commitment to provide further financial support to the joint ventures. These additional losses are reversed to the extent of net income subsequently reported by the joint ventures. User-specified TAGGED TABLE

March 31, 2004 (Unaudited) March 31, 2003 (Unaudited)
(US$'000)
Additional losses in excess of investment value and subsequent reversal 21 (38 )

end of user-specified TAGGED TABLE 3. Under IFRS, MIC started reconsolidating its operation in El Salvador ("Telemovil") in September 2003 after the dispute with the minority shareholders was resolved. Under U.S. GAAP, MIC has retroactively adjusted its historical unaudited interim financial statements for the three-month period ended March 31, 2003 prepared under U.S. GAAP to reflect its investment in Telemovil as an equity investment as required under Accounting Principles Board Opinion No. 18, The Equity Method of Accounting for Investments in Common Stock . MIC originally carried its investment in Telemovil as a cost investment. The adjustment to the profit and loss account to record MIC's share of Telemovil's equity earnings under U.S. GAAP for the three-month period ended March 31, 2003 is $2,058,000 and the carrying amount of investments in associates under U.S. GAAP as at March 31, 2003 has been increased by $12,585,000. Upon consolidation, under U.S. GAAP, MIC reclassified an amount of $19,605,000 from the carrying amount of its investment in Telemovil to goodwill, corresponding to the remaining difference between the investments cost and the underlying equity in net assets of Telemovil at the date of investments in Telemovil. Under IFRS, prior to the consolidation in September 2003, Telemovil was recorded as an available-for-sale investment and therefore no reclassification to goodwill was recorded. Also, under IFRS, a cumulative adjustment for Telemovil of $3,248,000 was recorded directly to equity, upon consolidation. Under U.S. GAAP this adjustment was eliminated prior to consolidation through the application of the equity method to prior years. 4. The value of cellular properties contributed by the shareholders of certain of the Company's subsidiaries and joint ventures, upon formation of MIC, were not recorded at the contributing shareholders' carryover basis under IFRS. Rather, the value of such properties was stepped-up to reflect their fair value. The incremental value recorded for these properties was recorded as an intangible asset, attributable to licenses, for $58,628,000. Following the implementation of International Accounting Standard No. 38 (IAS 38), Intangible Assets , the step-up in value of the properties has been amortized through the profit and loss account. The amount of amortization expense related to these intangible assets recorded for IFRS in the three-month period ended March 31, 2004 was $568,000 (March 31, 2003: $568,000). Under U.S. GAAP, the contributed properties would have been recorded at the contributing shareholders' carryover basis, thus no intangible asset and no amortization expense would have been recorded. Accordingly, this adjustment reverses the amortization expense recorded for IFRS, and the stepped-up value recorded in the balance sheet. 5. For the three-month period ended March 31, 2004, the compensation expense recognized under U.S. GAAP for stock based compensation amounts to $119,000 (March 31, 2003: $307,000). No compensation expense is recorded for stock based compensation under IFRS.

16

ZEQ.=2,SEQ=17,EFW="2137579",CP="MILLICOM INT CELLULAR S.A.",DN="1",CHK=627793,FOLIO='16',FILE='DISK013:[04LON6.04LON1716]DH1716A.;18',USER='GNEWBUR',CD='28-MAY-2004;15:43' 6. On January 1, 2004, MIC adopted Emerging Issues Task Force Issue 00-21 ("EITF 00-21"), Accounting for Revenue Arrangements with Multiple Deliverables . The Issue addresses a vendor's accounting for transactions involving the delivery of more than one product or service, and when it is necessary to separate the transaction into individual component deliverables, each with its own separate earnings process. If the conditions requiring separate revenue recognition exist, revenue is allocated among the different deliverables based on their relative fair values (the relative fair value of each of the component deliverables to the aggregated fair value of the bundled deliverables), with revenue for each component deliverable recognized when the revenue is realized and earned. The impact of adopting EITF 00-21 compared to the revenue recognized under IFRS, for the three-month period ended March 31, 2004, corresponds to a decrease in revenues of $407,000. This decrease is mainly due to a lower allocation of revenues to handsets that are delivered together with prepaid cards in a single package.

  1. Under IFRS, as at December 31, 2002, the Company recorded an impairment charge of $2,234,000 on the license value of its operation in Peru. This impairment was measured as the difference between the recoverable amount of the asset, which was determined by reference to the discounted cash flows projected to be generated from this asset, and its carrying value at the measurement date. Since the recoverable amount of the license, determined by reference to an undiscounted cash flow model, was higher than its carrying value, the impairment recorded under IFRS has been reversed for U.S. GAAP purposes. In 2003, an amount of $56,000 was charged to the profit and loss account under U.S. GAAP as an incremental depreciation charge for these assets. Following the classification of the Peruvian operation as asset held for sale as of December 31, 2003, (see Item 12) MIC recorded an additional impairment charge under U.S. GAAP at year-end 2003. Therefore no incremental depreciation charge was recorded during the first quarter of 2004.

17

ZEQ.=3,SEQ=18,EFW="2137579",CP="MILLICOM INT CELLULAR S.A.",DN="1",CHK=1035825,FOLIO='17',FILE='DISK013:[04LON6.04LON1716]DH1716A.;18',USER='GNEWBUR',CD='28-MAY-2004;15:43' 8. Under IFRS, the Company records its 10% Senior Notes and the debt component of its 5% Mandatory Exchangeable Notes net of un-amortized financing fees incurred to acquire these debts. Under U.S. GAAP, these financing fees are capitalized as a deferred charge. The amount that is reclassified as an asset in the balance sheet as of March 31, 2004, is $21,536,000 (December 31, 2003: $22,907,000), comprised of $13,756,000 for the 10% Senior Notes (December 31, 2003: $13,964,000) and $7,780,000 for the 5% Mandatory Exchangeable Notes (December 31, 2003: $8,943,000). 9. For U.S. GAAP purposes, MIC ceased amortization of existing goodwill on December 31, 2001. As of the three-month period ended March 31, 2004 MIC reversed $1,823,000 (March 31, 2003: $1,638,000) of amortization on goodwill charged under IFRS. In addition, in accordance with Statement of Financial Accounting Standard No. 141 (SFAS 141), Business Combinations , negative goodwill in the amount of $3,832,000 on the purchase of an additional 25.02% of MIC's operation in Tanzania in February 2004 has been reassigned on a pro rata basis to all acquired assets, except some assets as specified in SFAS 141. For the three-month period ended March 31, 2004 an amount of $212,000 was credited to the profit and loss account under U.S. GAAP as a reversal of the incremental depreciation charge recorded for IFRS. 10. Under both IFRS and U.S. GAAP, MIC holds shares in Tele2 as available-for-sale ("AFS") securities. Following the change in accounting policy with respect to the fair value adjustments of AFS securities under IFRS in 2003, MIC recorded the fair value adjustments of its investment in Tele2 in the profit and loss account as from January 1, 2003. Under U.S. GAAP these fair value adjustments should be recorded in shareholders' equity within the caption "Revaluation reserve". Accordingly, under U.S. GAAP, MIC reclassified an unrealized loss of $66,106,000 for the three-month period ended March 31, 2004 (March 31, 2003: reclassification of a net unrealized gain of $38,237,000 to shareholders' equity). 11. For U.S. GAAP purposes, the adjustments to the net profit under IFRS for the three-month period ended March 31, 2004 related to the debt exchange that MIC completed in May 2003 are as follows: (i) an amortization charge of the beneficial conversion feature ("BCF") related to the 2% PIK Notes of $5,178,000, (ii) a decrease in the interest on the 2% PIK Notes of $1,391,000 recorded under IFRS and (iii) an amortization expense of $589,000 of the deferred costs related to the issuance of the 2% PIK Notes. Summarized below are the adjustments to the profit for the three-month period ended March 31, 2004 related to the debt exchange for U.S. GAAP purposes: User-specified TAGGED TABLE

Adjustments to profit for the three-month period ended March 31, 2004 (Unaudited)
(U.S.$'000)
Amortization of BCF on the 2% PIK Notes (5,178 )
Adjustment to interest expenses on the 2% PIK Notes 1,391
Amortization of incremental deferred costs (589 )
(4,376 )

end of user-specified TAGGED TABLE

18

ZEQ.=4,SEQ=19,EFW="2137579",CP="MILLICOM INT CELLULAR S.A.",DN="1",CHK=878089,FOLIO='18',FILE='DISK013:[04LON6.04LON1716]DH1716A.;18',USER='GNEWBUR',CD='28-MAY-2004;15:43' 12. As at December 31, 2003 and March 31, 2004, MIC classified its investment in its Peruvian subsidiary as an asset held for sale in accordance with SFAS 144, following a decision to sell this operation and the status of the negotiations with potential buyers. In addition, upon adoption of FIN 46, as of March 31, 2004 MIC classified its investment in its Argentinean operation, which had previously been recorded as an equity investment under U.S. GAAP, as an asset held for sale in accordance with Statement of Financial Accounting Standards No 144 (SFAS 144), accounting for the impairment or disposal of long-lived assets SFAS 144. Finally, as of March 31, 2004, Great Universal and Modern Holdings also held two investments classified as held for sale in accordance with SFAS 144. Therefore MIC disclosed all assets and liabilities of these operations separately in the balance sheet reconciliations. For the period ended March 31, 2003, MIC's interests in Celcaribe are reported as a discontinuing operation since this operation has been sold in February 2003.

User-specified TAGGED TABLE

March 31, 2004 (Unaudited) March 31, 2003 (Unaudited) Segment in which reported
(US$'000)
Colombian operations — 1,189 Central America
Peruvian operations (289 ) (214 ) Other
Argentinean operations 1,945 (109 ) Other
Net profit from discontinued operations, excluding Great Universal and Modern Holdings 1,656 866
Discontinued operations held by Great Universal and Modern Holdings (38 ) 239 See item 13
Net profit reported from discontinued operations 1,618 1,105

end of user-specified TAGGED TABLE

User-specified TAGGED TABLE

March 31, 2004 (Unaudited) March 31, 2003 (Unaudited)
(US$'000)
Revenues from continuing operations 169,180 97,666
Cost of sales from continuing operations 69,476 41,898
Operating expenses from continuing operations 51,412 33,757
Operating profit from continuing operations 48,291 22,011
Profit/(loss) reported from continuing operations 77,616 (9,368 )

end of user-specified TAGGED TABLE

19

ZEQ.=5,SEQ=20,EFW="2137579",CP="MILLICOM INT CELLULAR S.A.",DN="1",CHK=713410,FOLIO='19',FILE='DISK013:[04LON6.04LON1716]DH1716A.;18',USER='GNEWBUR',CD='28-MAY-2004;15:43' THIS IS THE END OF A COMPOSITION COMPONENT

  1. Under International Accounting Standard No. 27 (IAS 27), Consolidated Financial Statements and Accounting for Investments in Subsidiaries a subsidiary should be excluded from consolidation if it operates under severe long-term restrictions that significantly impair its ability to transfer funds to the parent. In addition, Standing Interpretations Committee ("SIC") No. 33 states that potential voting rights that are presently exercisable or presently convertible must be considered when, in substance, they provide the capability to exercise control. Under IFRS, MIC does not consolidate its investment in Great Universal ("GU") and Modern Holdings ("Modern") since the restrictions on their ability to distribute dividends is considered a severe long-term restriction that significantly impairs their ability to transfer funds to MIC. Further, the warrants, which enable the holders to obtain 100% of GU and 53% of Modern, are presently exercisable and provide the capability, to the warrant holders, to control GU and Modern.

Reconciliation of Net Profit (loss) for the period:

The above items give rise to the following differences in net profit (loss) recorded under U.S. GAAP:

User-specified TAGGED TABLE

Item March 31, 2004 (Unaudited) March 31, 2003 (Unaudited)
(US$'000)
Net profit for the period reported under IFRS 14,730 26,226
Items decreasing (increasing) reported loss or (decreasing) increasing reported profit:
Application of equity method of accounting 2 21 (38 )
Application of equity method of accounting for Telemovil El Salvador 3 — 2,058
Adjustments to initial step-up in the value of licenses 4 568 568
Compensation cost for stock options granted to employees 5 (119 ) (307 )
Adjustments to revenue 6 (1,132 ) (354 )
Adjustments to impairment of tangible and intangible assets 7 132 (56 )
Reversal of goodwill amortization and adjustment for negative goodwill 9 2,035 1,638
Reclassification to shareholders' equity of fair value adjustments on available-for-sale securities 10 66,106 (38,237 )
Adjustments related to debt exchange 11 (4,376 ) —
Consolidation of Great Universal 1, 13 1,269 —
Profit/(loss) after taxes before cumulative effect of change in accounting principle 79,234 (8,502 )
Cumulative effect of change in accounting principle 1 3 —
Net profit/(loss) under U.S. GAAP 79,237 (8,502 )

insert table folio

20

ZEQ.=1,SEQ=21,EFW="2137579",CP="MILLICOM INT CELLULAR S.A.",DN="1",CHK=318498,FOLIO='20',FILE='DISK013:[04LON6.04LON1716]DI1716A.;17',USER='RWELLSA',CD='28-MAY-2004;13:19' end of table folio

Presented as: — Net profit/(loss) from continuing operations 77,616 (9,368 )
Discontinued operations: 12
(Loss)/profit from discontinued operations, net of taxes (a) 1,618 (2,439 )
Gain on disposal, net of taxes (a) — 3,305
(Loss)/profit from discontinued operations 1,618 866
Profit/(loss) after taxes, before cumulative effect of change in accounting principle under U.S. GAAP 79,234 (8,502 )
Cumulative effect of change in accounting principle (a) 1 3 —
Net profit/(loss) under U.S.GAAP 79,237 (8,502 )

end of user-specified TAGGED TABLE (a) The tax impact of these items is $nil in 2004 (2003: $nil) User-specified TAGGED TABLE

March 31, 2004 (Unaudited) March 31, 2003 (Unaudited)
Basic profit/(loss) per common share
Profit/(loss) per common share under U.S. GAAP:
—from continuing operations $ 1.18 $ (0.14 )
—from discontinuing operations $ 0.02 $ 0.01
Profit/(loss) per common share after taxes, before cumulative effect of change in accounting principle $ 1.20 $ (0.13 )
Impact of cumulative effect of change in accounting principle $ 0.00 —
Basic profit/(loss) per common share under U.S. GAAP $ 1.20 $ (0.13 )
Weighted average number of shares outstanding in the period (in '000) 65,963 65,136

end of user-specified TAGGED TABLE User-specified TAGGED TABLE

March 31, 2004 (Unaudited) March 31, 2003 (Unaudited)
Diluted profit/(loss) per common share
Profit/(loss) per common share under U.S. GAAP:
—from continuing operations $ 0.97 $ (0.14 )
—from discontinuing operations $ 0.02 $ 0.01
Profit/(loss) per common share after taxes, before cumulative effect of change in accounting principle $ 0.99 $ (0.13 )
Impact of cumulative effect of change in accounting principle $ 0.00 —
Diluted profit/(loss) per common share under U.S. GAAP $ 0.99 $ (0.13 )
Weighted average number of shares outstanding in the period (in '000) 79,930 65,136

end of user-specified TAGGED TABLE (a) The tax impact of these items is $nil in 2004 (2003: $nil)

21

ZEQ.=2,SEQ=22,EFW="2137579",CP="MILLICOM INT CELLULAR S.A.",DN="1",CHK=568007,FOLIO='21',FILE='DISK013:[04LON6.04LON1716]DI1716A.;17',USER='RWELLSA',CD='28-MAY-2004;13:19' THIS IS THE END OF A COMPOSITION COMPONENT

Balance Sheet Reconciliation:

The following significant balance sheet differences arise under U.S. GAAP as of March 31, 2004:

Balance sheet as of March 31, 2004

User-specified TAGGED TABLE

Item Per Balance Sheet Group (Unaudited) Consolidation of VIEs and Proportional Consolidation Adjustment (Items 1 & 2) (Unaudited) Other Adjustments (Unaudited) Held for sale assets and liabilities (Item 12) (Unaudited) Under U.S. GAAP Group (Unaudited)
(US$'000)
Assets
Non-Current Assets
Intangible assets
Goodwill, net 3, 9 43,924 11,259 46,019 — 101,202
Licenses, net 4 31,544 3,042 (7,077 ) (201 ) 27,308
Oher intangibles net 8, 11 5,417 (2,114 ) 22,223 (45 ) 25,481
Property, plant and equipment, net 7,9 522,042 42,572 (5,018 ) (4,462 ) 555,134
Financial assets
Investment in Tele2 AB shares 412,934 — — — 412,934
Investment in other securities 25,424 (2,188 ) — (762 ) 22,474
Investments in associates 6 1,458 23,093 (21 ) — 24,530
Pledged deposits 24,639 — — (20 ) 24,619
Deferred taxation 5,146 1,105 — (370 ) 5,881
Total Non-Current Assets 1,072,528 76,769 56,126 (5,860 ) 1,199,563
Current Assets
Investment in other securities 15,291 — — — 15,291
Trade receivable, net 135,690 16,062 — (712 ) 151,040
Prepayments, accrued income and other current assets 6 112,791 8,930 3,722 (734 ) 124,709
Time deposits 98,462 — — (600 ) 97,862
Cash and cash equivalents 96,889 21,342 — (914 ) 117,317
Total Current Assets 459,123 46,334 3,722 (2,960 ) 506,219
Total assets from disposal group classified as held for sale — — — 8,820 8,820
Total Assets 1,531,651 123,103 59,848 — 1,714,602

end of user-specified TAGGED TABLE

23

ZEQ.=1,SEQ=23,EFW="2137579",CP="MILLICOM INT CELLULAR S.A.",DN="1",CHK=830729,FOLIO='23',FILE='DISK013:[04LON6.04LON1716]DJ1716A.;12',USER='RWELLSA',CD='28-MAY-2004;15:04' User-specified TAGGED TABLE

Item Per Balance Sheet Group (Unaudited) Consolidation of VIEs and Proportional Consolidation Adjustment (Items 1 & 2) (Unaudited) Other Adjustments (Unaudited) Held for sale assets and liabilities (Item 12) (Unaudited) Under U.S. GAAP Group (Unaudited)
(US$'000)
Shareholders' Equity and Liabilities
Shareholders' equity
Share capital and premium 5,11 268,044 — 19,409 — 287,453
Treasury stock (8,833 ) — — — (8,833 )
2% PIK notes—equity component 11 9,485 — (9,485 ) — —
Legal reserve 4,256 — — — 4,256
Retained losses brought forward (267,287 ) (7,257 ) (161,363 ) — (435,907 )
Net profit/(loss) for the period, after cumulative effect of change in accounting principle 14,730 1,293 63,214 — 79,237
Currency translation reserve (70,221 ) — — — (70,221 )
Deferred compensation costs 5 — — (358 ) — (358 )
Revaluation reserve 10 — — 175,057 — 175,057
Excess of contribution over assets acquired 4 — — (58,628 ) (58,628 )
Total Shareholders' Equity (49,826 ) (5,964 ) 27,846 — (27,944 )
Minority Interest 30,456 50,462 (621 ) — 80,297
Liabilities
Non-current liabilities
10% Senior Notes 8 536,244 — 13,756 — 550,000
2% PIK Notes—debt component 11 31,001 — 573 — 31,574
5% Mandatory Exchangeable Notes— debt component 8 314,881 — 7,780 — 322,661
Embedded derivative on the 5% Mandatory Exchangeable Notes 51,757 — — — 51,757
Other debt and financing 112,297 23,933 — (623 ) 135,607
Deferred taxation and other non current liabilities 36,460 8,455 — — 44,915
1,082,640 32,388 22,109 (623 ) 1,136,514
Current liabilities
Other debt and financing 123,743 29 — (156 ) 123,616
Trade payables 147,129 16,639 — (1,572 ) 162,196
Other current liabilities 6 197,509 29,549 10,514 (1,753 ) 235,819
468,381 46,217 10,514 (3,481 ) 521,631
Total Liabilities 1,551,021 78,605 32,623 (4,104 ) 1,658,145
Total liabilities from disposal group classified as held for sale — — — 4,104 4,104
Total Shareholders' Equity and Liabilities 1,531,651 123,103 59,848 — 1,714,602

end of user-specified TAGGED TABLE

24

ZEQ.=2,SEQ=24,EFW="2137579",CP="MILLICOM INT CELLULAR S.A.",DN="1",CHK=952464,FOLIO='24',FILE='DISK013:[04LON6.04LON1716]DJ1716A.;12',USER='RWELLSA',CD='28-MAY-2004;15:04' THIS IS THE END OF A COMPOSITION COMPONENT

The following significant balance sheet differences arise under U.S. GAAP in 2003:

Balance sheet as of December 31, 2003

User-specified TAGGED TABLE

Item Per Balance Sheet Group Proportional Consolidation Adjustment (Items 1 & 2) Other Adjustments Held for sale assets and liabilities (Item 12) Under U.S. GAAP Group
(US$'000)
Assets
Non-Current Assets
Intangible assets
Goodwill, net 3, 9 49,578 — 40,365 — 89,943
Licenses, net 4 30,889 (8,372 ) (7,872 ) (210 ) 14,435
Other intangibles, net 8, 11 5,148 (2,176 ) 24,183 (51 ) 27,104
Property, plant and equipment, net 7 487,746 (125,995 ) (1,579 ) (1,848 ) 358,324
Financial assets
Investment in Tele2 AB shares 479,040 — — — 479,040
Investment in other securities 25,397 (24 ) — — 25,373
Investments in associates 6 1,340 96,075 (688 ) — 96,727
Pledged deposits 31,530 (1,460 ) — (28 ) 30,042
Deferred taxation 5,226 (1,698 ) — (370 ) 3,158
Total Non-Current Assets 1,115,894 (43,650 ) 54,408 (2,507 ) 1,124,145
Current Assets
Financial assets
Investment in other securities 15,291 — — — 15,291
Accounts receivable, net 129,792 (31,898 ) — (212 ) 97,682
Prepayments, accrued income and other current assets 6 80,263 (16,429 ) 2,207 (387 ) 65,654
Time deposits 32,880 — — (598 ) 32,282
Cash and cash equivalents 148,829 (26,662 ) — (356 ) 121,811
Total Current Assets 407,055 (74,989 ) 2,207 (1,553 ) 332,720
Total assets from disposal group classified as held for sale — — — 4,060 4,060
Total Assets 1,522,949 (118,639 ) 56,615 — 1,460,925

end of user-specified TAGGED TABLE

25

ZEQ.=1,SEQ=25,EFW="2137579",CP="MILLICOM INT CELLULAR S.A.",DN="1",CHK=1019501,FOLIO='25',FILE='DISK013:[04LON6.04LON1716]DK1716A.;8',USER='RWELLSA',CD='28-MAY-2004;10:04' User-specified TAGGED TABLE

Item Per Balance Sheet Group Proportional Consolidation Adjustment (Items 1 & 2) Other Adjustments Held for sale assets and liabilities (Item 12) Under U.S. GAAP Group
(US$'000)
Shareholders' Equity and Liabilities
Shareholders' equity
Share capital and premium 5 239,876 — 22,610 — 262,486
Treasury stock (8,833 ) — — — (8,833 )
2% PIK notes—equity component 11 16,006 — (16,006 ) — —
Legal reserve 4,256 — — — 4,256
Retained losses brought forward (446,110 ) (5,931 ) 71,093 — (380,948 )
Net profit/(loss) for the year, after cumulative effect of change in accounting principle 178,823 (1,052 ) (232,731 ) — (54,960 )
Currency translation reserve (69,198 ) — — — (69,198 )
Deferred compensation costs 5 — — (1,344 ) — (1,344 )
Revaluation reserve 10 — — 241,163 — 241,163
Excess of contribution over assets acquired 4 — — (58,628 ) — (58,628 )
Total Shareholders' Equity (85,180 ) (6,983 ) 26,157 — (66,006 )
Minority Interest 26,571 — — — 26,571
Liabilities
Non-current liabilities
10% Senior Notes 8 536,036 — 13,964 — 550,000
2% PIK Notes—debt component 11 50,923 — 973 — 51,896
5% Mandatory Exchangeable Notes—debt component 8 327,635 — 8,943 — 336,578
Embedded derivative on the 5% Mandatory Exchangeable Notes 103,457 — — — 103,457
Other debt and financing 126,150 (29,335 ) — — 96,815
Deferred taxation and other non current liabilities 33,944 (12,089 ) — — 21,855
1,178,145 (41,424 ) 23,880 — 1,160,601
Current liabilities
Other debt and financing 132,664 (10,099 ) — (75 ) 122,490
Trade payables 112,764 (36,150 ) — (195 ) 76,419
Other current liabilities 6 157,985 (23,983 ) 6,579 (240 ) 140,341
403,413 (70,232 ) 6,579 (510 ) 339,250
Total Liabilities 1,581,558 (111,656 ) 30,459 (510 ) 1,499,851
Total liabilities from disposal group classified as held for sale — — — 510 510
Total Shareholders' Equity and Liabilities 1,522,949 (118,639 ) 56,615 — 1,460,925

end of user-specified TAGGED TABLE

26

ZEQ.=2,SEQ=26,EFW="2137579",CP="MILLICOM INT CELLULAR S.A.",DN="1",CHK=571825,FOLIO='26',FILE='DISK013:[04LON6.04LON1716]DK1716A.;8',USER='RWELLSA',CD='28-MAY-2004;10:04'

The Company's statement of comprehensive income under U.S. GAAP for the three-month periods ended March 31, 2004 and 2003 is as follows:

User-specified TAGGED TABLE

March 31, 2004 (Unaudited) March 31, 2003 (Unaudited)
(US$'000)
Net profit/(loss) under U.S. GAAP 79,237 (8,502 )
Other comprehensive income (loss):
Holding (loss) gain excluding effect of sale of marketable securities sold during the year, net of tax (a) (66,106 ) 38,237
Holding loss for securities sold during the year, net of tax (a) — (637 )
Reclassification adjustment for net loss realized on sale of marketable securities, net of tax (a) — 637
Currency translation reserve (1,023 ) (3,745 )
Other comprehensive (loss) income (67,129 ) 34,492
Comprehensive income under U.S. GAAP 12,108 25,990

end of user-specified TAGGED TABLE (a) The tax impact on these items is $nil (March 31, 2003: $nil)

As described above, under U.S. GAAP, the Company accounts for stock options under APB25. Had compensation costs been determined in accordance with SFAS 123, the Company's net income and loss per share would have been adjusted to the following pro forma amounts.

User-specified TAGGED TABLE

March 31, 2004 (Unaudited) March 31, 2003 (Unaudited)
(US$'000)
Net profit/(loss), as reported 79,237 (8,502 )
Add: total stock-based employee compensation expense determined under APB 25 for all awards, net of related tax effects 119 307
Deduct: total stock-based employee compensation expense determined under fair value based method for all awards, net of related tax effects (3,677 ) (1,010 )
Pro forma net loss 75,679 (9,205 )
Profit/(loss) per share:
As reported (basic)—$ 1.20 (0.13 )
As reported (diluted)—$ 0.99 (0.13 )
Pro forma (basic)—$ 1.15 (0.14 )
Pro forma (diluted)—$ 0.95 (0.14 )

end of user-specified TAGGED TABLE

The fair value of the options granted was estimated on the date of grant using the Black-Scholes option pricing model with the following assumptions: risk free interest rates of 4.4% (March 31, 2003: 4.4%), expected lives of 3.5 years, no dividends and expected volatility of 114.9% (March 31, 2003: 58.4%).

27

ZEQ.=3,SEQ=27,EFW="2137579",CP="MILLICOM INT CELLULAR S.A.",DN="1",CHK=377129,FOLIO='27',FILE='DISK013:[04LON6.04LON1716]DK1716A.;8',USER='RWELLSA',CD='28-MAY-2004;10:04'

13. SUBSEQUENT EVENTS

On April 26, 2004 MIC called the entire outstanding amount of 2% PIK Notes Due 2006 in an aggregate principal amount of approximately $160,000 for redemption in cash in accordance with the terms of the Indenture covering the 2% PIK Notes. An amount of $63,371,000 out of the total $63,531,000 2% Notes was converted into MIC shares before April 26, 2004. Following these conversions, the total number of outstanding MIC shares is 89,638,927 shares with a par value of $1.50 each.

14. SUPPLEMENTAL CONDENSED CONSOLIDATING FINANCIAL INFORMATION

As mentioned in Note 18 of the Consolidated Financial Statements of December 31, 2003, MIC exchanged, on May 8, 2003, $776 million of the Notes for $562 million of 11% Senior Amortizing Notes due 2006 (the "11% Notes") and $64 million of 2% PIK Notes due 2006, together the "New Notes". MIC's indirectly wholly owned subsidiary, Millicom International Operations B.V. or "MIOBV", will irrevocably and unconditionally guarantee certain payments of the New Notes. The 11% Notes were fully redeemed in 2003.

The following information presents condensed consolidating financial information for MIC, the "Issuer", MIOBV, "the Guarantor", and the other non-guarantor subsidiaries of MIC, the "Non-Guarantor Subsidiaries".

The Company has not provided reconciliation between IFRS and U.S. GAAP for the columns relating to the Guarantor as such reconciliation would not materially affect an investor's understanding of the nature of the guarantee.

28

ZEQ.=4,SEQ=28,EFW="2137579",CP="MILLICOM INT CELLULAR S.A.",DN="1",CHK=1009880,FOLIO='28',FILE='DISK013:[04LON6.04LON1716]DK1716A.;8',USER='RWELLSA',CD='28-MAY-2004;10:04' THIS IS THE END OF A COMPOSITION COMPONENT

Consolidated condensed balance sheets as of March 31, 2004 and December 31, 2003 are as follows:

User-specified TAGGED TABLE

As of March 31, 2004 — Issuer Guarantor Non-Guarantor Subsidiaries Consolidation adjustments Consolidated
(US $'000)
ASSETS
Non-current assets
Property, plant and equipment, net 143 — 615,278 (93,379 ) 522,042
Investment in securities 2,962 — 1,928,235 (1,491,383 ) 439,814
Pledged deposits 22,296 — 2,343 — 24,639
Deferred taxation — — 6,452 (1,306 ) 5,146
Other non-current assets 80 3 89,677 (8,874 ) 80,886
Current assets
Inventories — — 15,624 (3,150 ) 12,474
Investment in securities — — 15,291 — 15,291
Amounts due from joint ventures 477,391 370 967,578 (1,434,939 ) 10,400
Time deposits 73,673 — 24,789 — 98,462
Cash and cash equivalents 4,311 26 118,228 (25,676 ) 96,889
Other current assets 2,203 — 263,196 (39,791 ) 225,608
Total assets 583,059 399 4,046,691 (3,098,498 ) 1,531,651
LIABILITIES
Non-current liabilities
Other non-current liabilities 36,869 55,860 (92,729 ) — —
Deferred taxation — — 44,666 (8,206 ) 36,460
Corporate debt 567,245 — 366,638 — 933,883
Other debt and financing — — 509,029 (394,183 ) 114,846
Current liabilities
Other debt and financing — — 128,777 (5,034 ) 123,743
Trade payables 943 — 178,088 (31,902 ) 147,129
Amounts due to other related parties — 1,925 1,074,594 (1,074,479 ) 2,040
Other current liabilities 27,828 84 193,125 (28,117 ) 192,920
Total liabilities 632,885 57,869 2,402,188 (1,541,921 ) 1,551,021
EQUITY
Total shareholders' equity (49,826 ) (57,470 ) 1,637,708 (1,580,238 ) (49,826 )
Minority interest — — 6,794 23,662 30,456

end of user-specified TAGGED TABLE

29

ZEQ.=1,SEQ=29,EFW="2137579",CP="MILLICOM INT CELLULAR S.A.",DN="1",CHK=475987,FOLIO='29',FILE='DISK013:[04LON6.04LON1716]DL1716A.;6',USER='RWELLSA',CD='28-MAY-2004;10:06' User-specified TAGGED TABLE

As of December 31, 2003 — Issuer Guarantor Non-Guarantor Subsidiaries Consolidation adjustments Consolidated
(US $'000)
ASSETS
Non-current assets
Property, plant and equipment, net 143 — 590,851 (103,248 ) 487,746
Investment in securities 2,962 — 1,986,775 (1,485,300 ) 504,437
Pledged deposits 22,296 — 10,233 (999 ) 31,530
Deferred taxation — — 6,656 (1,430 ) 5,226
Other non-current assets 314 3 97,035 (10,397 ) 86,955
Current assets
Inventories — — 14,271 (3,330 ) 10,941
Investment in securities — — 15,291 — 15,291
Amounts due from joint ventures 533,729 — 905,919 (1,426,511 ) 13,137
Time deposits — — 32,880 — 32,880
Cash and cash equivalents 22,738 57 149,368 (23,334 ) 148,829
Other current assets 5,535 — 216,306 (35,864 ) 185,977
Total assets 587,717 60 4,025,585 (3,090,413 ) 1,522,949
LIABILITIES
Non-current liabilities
Other non-current liabilities 70,751 96,347 103,457 (167,098 ) 103,457
Deferred taxation — — 44,219 (10,275 ) 33,944
Corporate debt 586,959 — 327,635 — 914,594
Other debt and financing — — 354,754 (228,604 ) 126,150
Current liabilities
Other debt and financing — — 141,372 (8,708 ) 132,664
Trade payables 2,297 — 136,961 (26,494 ) 112,764
Amounts due to other related parties 125 1,925 1,062,510 (1,063,952 ) 608
Other current liabilities 12,765 94 162,958 (18,440 ) 157,377
Total liabilities 672,897 98,366 2,333,866 (1,523,571 ) 1,581,558
EQUITY
Total shareholders' equity (85,180 ) (98,306 ) 1,685,205 (1,586,899 ) (85,180 )
Minority interest — — 6,514 20,057 26,571

end of user-specified TAGGED TABLE

30

ZEQ.=2,SEQ=30,EFW="2137579",CP="MILLICOM INT CELLULAR S.A.",DN="1",CHK=82681,FOLIO='30',FILE='DISK013:[04LON6.04LON1716]DL1716A.;6',USER='RWELLSA',CD='28-MAY-2004;10:06' THIS IS THE END OF A COMPOSITION COMPONENT

Consolidated condensed profit and loss accounts for the quarter ended March 31, 2004 and 2003 are as follows:

User-specified TAGGED TABLE

For the quarter ended March 31, 2004 — Issuer Guarantor Non-Guarantor Subsidiaries Consolidation adjustments Consolidated
(US $'000)
Revenues 2,697 — 260,413 (49,251 ) 213,859
Cost of sales — — (68,582 ) (15,568 ) (84,150 )
Sales and marketing — — (30,709 ) 1,919 (28,790 )
General and administrative expenses — — (75,967 ) 46,637 (29,330 )
Gain (loss) from sale of subsidiaries and joint ventures, net (386 ) — (28 ) 444 30
Other operating expenses (6,748 ) (20 ) (1,624 ) (1,130 ) (9,522 )
Loss from investment securities, net — — (14,132 ) (51,974 ) (66,106 )
Net interest (14,913 ) — (11,384 ) 522 (25,775 )
Exchange gain (loss) (101 ) — 14,641 (116 ) 14,424
Charge for taxes — 3 (21,252 ) 4,547 (16,702 )
Other income (charges) — — — 134 134
Fair value result on financial instruments — — 51,700 — 51,700
Equity income (loss) 34,181 40,853 (75,034 ) — —
Minority interest — — (280 ) (4,762 ) (5,042 )
Net profit (loss) for the period 14,730 40,836 (23,938 ) (16,898 ) 14,730

end of user-specified TAGGED TABLE User-specified TAGGED TABLE

For the quarter ended March 31, 2003 — Issuer Guarantor Non-Guarantor Subsidiaries Consolidation adjustments Consolidated
(US $'000)
Revenues 2,170 — 185,299 (42,750 ) 144,719
Cost of sales — — (47,756 ) (10,069 ) (57,825 )
Sales and marketing — — (19,961 ) 2,005 (17,956 )
General and administrative expenses — — (63,936 ) 37,252 (26,684 )
Gain (loss) from sale of subsidiaries and joint ventures, net — (7 ) (394 ) 2,219 1,818
Other operating expenses (6,144 ) (49 ) (986 ) (391 ) (7,570 )
Loss from investment securities, net 18,813 — (17,551 ) 36,338 37,600
Net interest (28,560 ) (177 ) (9,979 ) 943 (37,773 )
Exchange gain (loss) 78 (161 ) 3,773 64 3,754
Charge for taxes — (34 ) (15,533 ) 5,369 (10,198 )
Other income — 363 37,874 (38,192 ) 45
Equity income (loss) 39,869 14,734 (54,603 ) — —
Minority interest — — 178 (3,882 ) (3,704 )
Net profit (loss) for the period 26,226 14,669 (3,575 ) (11,094 ) 26,226

end of user-specified TAGGED TABLE

31

ZEQ.=1,SEQ=31,EFW="2137579",CP="MILLICOM INT CELLULAR S.A.",DN="1",CHK=73067,FOLIO='31',FILE='DISK013:[04LON6.04LON1716]DM1716A.;10',USER='RWELLSA',CD='28-MAY-2004;10:41'

Consolidated condensed cash flow statements for the quarter ended March 31, 2004 and 2003 are as follows:

User-specified TAGGED TABLE

For the quarter ended March 31, 2004 — Issuer Guarantor Non-Guarantor Subsidiaries Consolidated
(US $'000)
Net cash provided by (used in) operating activities 54,925 (31 ) 20,511 75,405
Cash flows from investing activities:
Purchase of intangible assets — — (3,453 ) (3,453 )
Purchase of tangible assets — — (39,003 ) (39,003 )
(Increase) Decrease in amounts due from joint ventures — — 3,040 3,040
(Increase) Decrease in pledged deposits — — 7,940 7,940
(Increase) Decrease in time deposits (73,673 ) — 8,106 (65,567 )
Cash provided by (used in) other investing activities (13 ) — 13 —
Net cash provided by (used in) investing activities (73,686 ) — (23,357 ) (97,043 )
Cash flows from financing activities:
Proceeds from the issuance of debt — — 13,226 13,226
Repayment of debt and other financing — — (39,720 ) (39,720 )
Dividends paid to minorities — — (4,200 ) (4,200 )
Other financing activities 334 — — 334
Net cash provided by (used in) financing activities 334 — (30,694 ) (30,360 )
Cash effect of exchange changes — — 58 58
Net increase in cash and cash equivalents (18,427 ) (31 ) (33,482 ) (51,940 )
Cash and cash equivalents, beginning 22,738 57 126,034 148,829
Cash and cash equivalents, ending 4,311 26 92,552 96,889

end of user-specified TAGGED TABLE

32

ZEQ.=2,SEQ=32,EFW="2137579",CP="MILLICOM INT CELLULAR S.A.",DN="1",CHK=785440,FOLIO='32',FILE='DISK013:[04LON6.04LON1716]DM1716A.;10',USER='RWELLSA',CD='28-MAY-2004;10:41' User-specified TAGGED TABLE

For the quarter ended March 31, 2003 — Issuer Guarantor Non-Guarantor Subsidiaries Consolidated
(US $'000)
Net cash provided by (used in) operating activities 32,444 5,370 24,170 61,984
Cash flows from investing activities:
Proceeds from the disposal of subsidiaries and joint ventures, net of cash disposed — — 7,452 7,452
Proceeds from the disposal of investments in securities — — 1,064 1,064
(Increase) Decrease in amounts due from joint ventures — — (1,496 ) (1,496 )
Purchase of intangible assets — — (1,030 ) (1,030 )
Purchase of tangible assets — — (22,635 ) (22,635 )
(Increase) Decrease in pledged deposits 11,711 — (2,349 ) 9,362
(Increase) Decrease in time deposits (30,361 ) — (587 ) (30,948 )
Cash provided by (used in) other investing activities (19,070 ) 39 19,128 97
Net cash provided by (used in) investing activities (37,720 ) 39 (453 ) (38,134 )
Cash flows from financing activities:
Proceeds from the issuance of debt — — 69,324 69,324
Repayment of debt and other financing 419 — (83,654 ) (83,235 )
Payments to shareholders — — (3,005 ) (3,005 )
Other financing activities (62 ) (5,408 ) 5,470 —
Net cash provided by (used in) financing activities 357 (5,408 ) (11,865 ) (16,916 )
Cash effect of exchange changes — — 173 173
Net increase in cash and cash equivalents (4,919 ) 1 12,025 7,107
Cash and cash equivalents, beginning 6,895 61 63,495 70,451
Cash and cash equivalents, ending 1,976 62 75,520 77,558

end of user-specified TAGGED TABLE

33

ZEQ.=3,SEQ=33,EFW="2137579",CP="MILLICOM INT CELLULAR S.A.",DN="1",CHK=135390,FOLIO='33',FILE='DISK013:[04LON6.04LON1716]DM1716A.;10',USER='RWELLSA',CD='28-MAY-2004;10:41' THIS IS THE END OF A COMPOSITION COMPONENT

ITEM 2. MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS

The following discussion should be read in conjunction with, and is qualified in its entirety by reference to our unaudited consolidated financial statements and the related notes thereto included elsewhere in this report.

Unless otherwise indicated, all financial data and discussions relating thereto in this discussion and analysis are based upon interim financial statements prepared in accordance with IFRS. See Note 12 of the "Notes to the interim Consolidated Financial Statements" for certain reconciliations between IFRS and U.S. GAAP.

Overview

Introduction

We are a global telecommunications operator with a portfolio of investments in the world's emerging markets over which we typically exercise management and voting control. Our strategy of being a low cost provider, focused on prepaid services using mass market distribution methods, has enabled us to continue to pursue high growth while delivering operating profitability.

We currently have interests in 16 cellular systems in 15 countries, focusing on emerging markets in Asia, Latin America and Africa. As of March 31, 2004, our cellular operations had a combined population under license of approximately 387 million people.

Recent Developments

On April 26, 2004 MIC called the entire outstanding amount of 2% Senior Convertible PIK Notes Due 2006 (the "2% Notes") in an aggregate principal amount of approximately $160,000 for redemption in cash in accordance with the terms of the Indenture covering the 2% Notes. An amount of $63,371,000 out of the total $63,531,000 2% Notes was converted into MIC shares before April 26, 2004. Following these conversions, the total number of outstanding MIC shares is 89,638,927 shares with a par value of $1.50 each.

MIC's listing on Stockholmsbörsen (the Swedish Stock Exchange) became effective on March 30, 2004.

Subscriber Base

We have consistently achieved strong subscriber growth across our operations. As of March 31, 2004, we had total subscribers of 5,897,371 of which 468,591 related to El Salvador. This represented an increase of 39% from 4,248,714 as of March 31, 2003.

As of March 31, 2004, we had a proportional subscriber base of 4,128,030 of which 468,591 related to El Salvador, an increase of 39% from March 31, 2003.

Revenues

Our revenues were $213,859,000 for the three months ended March 31, 2004 as compared to $144,719,000 for the three months ended March 31, 2003. Included in total revenues for the three months ended March 31, 2004 are revenues of $33,844,000 from our operation in El Salvador which was reconsolidated since September 15, 2003. Included in total revenues for the three months ended March 31, 2003 are revenues of $5,926,000 from our operation in Colombia which was disposed of in February 2003.

34

ZEQ.=1,SEQ=34,EFW="2137579",CP="MILLICOM INT CELLULAR S.A.",DN="1",CHK=83199,FOLIO='34',FILE='DISK013:[04LON6.04LON1716]DO1716A.;6',USER='RWELLSA',CD='28-MAY-2004;13:21'

Revenues from our continuing operations increased during the three months ended March 31, 2004 compared with the three months ended March 31, 2003, reflecting the continued expansion of the subscriber base in continuing operations and the reconsolidation of El Salvador. Increases occurred most significantly in airtime revenue.

Upstreaming of Cash

The continued improvement in the operating and financial performance of our ventures has allowed us to continue to upstream excess cash from our ventures to MIC. For the three months ended March 31, 2004, we upstreamed $45 million from 13 of the 15 countries in which we operate.

Debt

Millicom's total consolidated indebtedness as of March 31, 2004 was $1,169,923,000 (including the embedded derivative on the 5% Mandatory Exchangeable Notes for an amount of $51,757,000) and our total consolidated net indebtedness (representing total consolidated indebtedness after deduction of cash, cash equivalents and short-term time deposits) was $974,572,000. Of such indebtedness, $314,881,000 relates to the 5% Mandatory Exchangeable Notes, which are mandatorily exchangeable into Tele2 AB B shares and $51,757,000 to the embedded derivative on the 5% Mandatory Exchangeable Notes and in respect of which no repayment in cash of principal is required. In addition, our interest obligations in respect of the 5% Mandatory Exchangeable Notes have been secured by U.S. Treasury STRIPS, which we purchased with a portion of the net proceeds from the offering of the 5% Mandatory Exchangeable Notes. To date, our restructuring plan has enhanced our balance sheet and significantly improved our liquidity levels by reducing our debt service obligations.

El Salvador Operations

On September 15, 2003, MIC's operation in El Salvador, Telemóvil, entered into a share purchase agreement with the minority shareholders of Telemóvil. The agreement provides for the acquisition by Telemóvil of 30% of its own shares for a consideration of $70 million payable over a period of a maximum of 6 years and an annual dividend premium of $1 million, with a corresponding net present value of $67,371,000. Of this amount $16 million was paid in cash at the closing of the transaction. The payment of the acquisition price is guaranteed by MIC. During this period Telemóvil has an ownership interest in 30% of its own shares, while the record title of these shares remains with an escrow agent for the benefit of the minority shareholders pending the final settlement date. Based on this agreement, MIC regained control and began consolidating Telemóvil at 100% since September 15, 2003. The legal ownership interest of MIC remains at 70% until the final settlement date. Telemóvil's license contract was signed in September 1991 for a 15-year period. The license is automatically renewable for successive five-year periods after the initial 15-year period in the absence of default by Telemóvil under the license conditions.

The reconsolidation of El Salvador will positively impact revenues, as Telemóvil is a significant contributor to the revenues generated in Latin America. In the fourth quarter of 2003 and first quarter of 2004, the revenues of Telemóvil represented 17% and 16%, respectively, of our total revenues for the respective quarters. We expect that our operations in El Salvador will contribute similar levels of revenues to our consolidated revenues in 2004. Our operating profit is also expected to be positively affected following the reconsolidation of Telemóvil. However, we are currently taking additional steps to further increase the profitability of Telemóvil and to bring Telemóvil's operating margin in line with the operations of the Millicom group.

35

ZEQ.=2,SEQ=35,EFW="2137579",CP="MILLICOM INT CELLULAR S.A.",DN="1",CHK=382166,FOLIO='35',FILE='DISK013:[04LON6.04LON1716]DO1716A.;6',USER='RWELLSA',CD='28-MAY-2004;13:21'

Like other MIC operations in Latin America, during the first half of 2004 Telemóvil began changing its network technology to the GSM standard. The aggregate cost of building out this new network, together with capital investments relating to the migration of certain of our existing customers to GSM networks, will be principally financed through supplier financing and operating cash flow. In addition, Telemóvil will continue to use a portion of its operating cash flow to repay the debt related to the acquisition of its own shares.

Effect of Exchange Rate Fluctuations

Exchange rates for currencies of the countries in which our ventures operate may fluctuate in relation to the U.S. dollar, and such fluctuations may have a material adverse effect on our earnings, assets or cash flows when translating local currency into U.S. dollars. For each venture that reports in a currency other than the U.S. dollar, a decrease in the value of that currency against the U.S. dollar would reduce our profits while also reducing both our assets and liabilities. In the three months ended March 31, 2004, we had an exchange gain of $14,424,000, which is mainly due for the quarter ended March 31, 2004 to the exchange gain on the 5% Mandatory Exchangeable Notes. To the extent that our ventures upstream cash in the future, the amount of U.S. dollars we will receive will be affected by fluctuations of exchange rates for such currencies against the U.S. dollar. The exchange rates obtained when converting local currencies into U.S. dollars are set by foreign exchange markets over which we have no control. We have not entered into any significant hedging transactions to limit our foreign currency exposure. In the three months ended March 31, 2003, we had an exchange gain of $3,754,000.

Recent IFRS pronouncements

On February 19, 2004 the International Accounting Standards Board («IASB») issued International Financial Reporting Standard No. 2 («IFRS 2»), Share-based payments. IFRS 2 requires companies to recognize the cost of share-based awards to employees over the period from the grant date to the vesting date. The cost is assessed on a fair value basis, with measurement at the grant date. The fair value of share awards will be assessed using an option-pricing model. IFRS 2 applies to accounting periods beginning on or after January 1, 2005. MIC is currently assessing the impact on its consolidated financial statements of adopting IFRS 2.

On March 31, 2004 the IASB issued International Financial Reporting Standard No. 3 («IFRS 3»), Business Combinations. IFRS 3 brings some important changes to the accounting for business combinations. Amongst others, IFRS 3 requires reporting enterprise to account for all business combinations as acquisitions, to recognize intangible assets arising from business combinations separately from goodwill, to recognize acquired measurable contingent liabilities, to allocate goodwill to cash-generating units ("CGUs") and to stop amortization of goodwill and to test goodwill for impairment on an annual basis. IFRS 3 is mandatory for business combinations that are agreed on or after March 31, 2004. MIC has elected to apply IFRS 3 prospectively. Therefore the accounting for past acquisitions will not change until January 1, 2005, when amortization of goodwill and any existing negative goodwill will be reversed to equity.

On March 31, 2004, the IASB issued International Financial Reporting Standard No. 5 («IFRS 5»), Non-current Assets Held for Sale and Discontinued Operations. IFRS 5 precise the measurement and presentation requirements for non-current assets "held for sale" in order to converge them with the requirements of Statement of Financial Accounting Standard No. 144 ("SFAS 144"). Companies affected by IFRS 5 will be required to have new balance sheet line items, both for assets for sale and associated liabilities. IFRS 5 applies to accounting periods beginning on or after January 1, 2005. MIC is currently assessing the impact on its consolidated financial statements of adopting IFRS 5.

36

ZEQ.=3,SEQ=36,EFW="2137579",CP="MILLICOM INT CELLULAR S.A.",DN="1",CHK=245636,FOLIO='36',FILE='DISK013:[04LON6.04LON1716]DO1716A.;6',USER='RWELLSA',CD='28-MAY-2004;13:21'

Finally, during 2003 and early 2004 the IASB released 15 revised standards and further amendments, including IAS 32 and IAS 39. MIC is currently assessing the impact on its consolidated financial statements of adopting these revised standards, which will come into force on January 1, 2005.

Results of Operations

The following table sets forth certain profit and loss statement items for the periods indicated.

User-specified TAGGED TABLE

Three Months Ended March 31, — 2004 (unaudited) 2003 (unaudited) Impact on Comparative Results for Period — Amount of Variation Percent Change
(in thousands of U.S. dollars, except percentages)
Revenues 213,859 144,719 69,140 48 %
Cost of sales (84,150 ) (57,825 ) (26,325 ) 46 %
Sales and marketing (28,790 ) (17,956 ) 10,834 60 %
General and administrative expenses (29,330 ) (26,684 ) (2,646 ) 10 %
Other operating expenses (9,522 ) (7,570 ) (1,952 ) 26 %
Operating profit 62,097 36,502 25,595 70 %
Valuation movement on securities (66,106 ) 37,600 (103,706 ) —
Fair value result on financial instruments 51,700 — — —
Interest expense (27,349 ) (38,902 ) 11,553 (30 %)
Exchange gain, net 14,424 3,754 10,670 284 %
Charge for taxes (16,702 ) (10,198 ) (6,504 ) 64 %
Net profit for the period 14,730 26,226 (11,496 ) (44 %)

end of user-specified TAGGED TABLE

Subscribers. Our worldwide total cellular subscribers increased by 39% to 5,897,371 as of March 31, 2004 from 4,248,714 as of March 31, 2003. Of the total subscribers as of March 31, 2004, 5,135,547, or 87%, were prepaid, an increase of 39% over the 3,707,852 prepaid subscribers as of March 31, 2003. Our proportional subscribers increased by 39% to 4,128,030 as of March 31, 2004 from 2,962,603 as of March 31, 2003. The four largest contributors to subscriber growth in the three months ended March 31, 2004 were the operations in Vietnam, Senegal, Cambodia and Pakistan with a total of 320,357 net new subscribers.

Revenues. Total revenues for the three months ended March 31, 2004 were $213,859,000, an increase of 48% over $144,719,000 for the three months ended March 31, 2003. The increase is mainly due to revenue growth throughout the Group's operations, the reconsolidation of El Salvador since September 15, 2003 and is reduced due to the divestment of Colombia in February 2003. Included in total revenues for the three months ended March 31, 2004 are revenues of $33,844,000 from our operation in El Salvador, and included in total revenues for the three months ended March 31, 2003 are revenues of $5,926,000 from our divested operation in Colombia. The four largest contributors to revenues during the three months ended March 31, 2004 were our operations in Vietnam, El Salvador, Guatemala and Pakistan.

Cost of sales. Cost of sales increased by 46% for the three months ended March 31, 2004 to $84,150,000 from $57,825,000 for the three months ended March 31, 2003. The increased cost of sales is mainly explained by the growth throughout the operations and the reconsolidation of El Salvador. As a percentage of total revenues, cost of sales for operations decreased to 39% for the three months ended March 31, 2004 from 40% for the three months ended March 31, 2003.

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Sales and marketing. Sales and marketing expenses increased by 60% for the three months ended March 31, 2004 to $28,790,000 from $17,956,000 for the three months ended March 31, 2003. This increase mainly reflects the reconsolidation of El Salvador since September 15, 2003 and the increase in sales and marketing expenses in MIC's operations. Sales and marketing expenses as a percentage of total revenues were 13% for the three months ended March 31, 2004 compared to 12% for the three months ended March 31, 2003.

General and administrative expenses. General and administrative expenses increased by 10% for the three months ended March 31, 2004 to $29,330,000. The increase is largely due to the reconsolidation of El Salvador referred to above, which had general and administrative expenses of $4,996,000 for the three months ended March 31, 2004.

Other operating expenses. Other operating expenses increased by 26% for the three months ended March 31, 2004 to $7,570,000 from $9,522,000 for the three months ended March 31, 2003.

Operating profit. Total operating profit for the three months ended March 31, 2004 was $62,097,000, compared with $36,502,000 for the three months ended March 31, 2003 for the reasons stated above.

Valuation movement on securities. For the three months ended March 31, 2004 valuation movement on securities was $(66,106,000) representing the decrease in share price of the Tele2 AB shares since December 31, 2003. For the three months ended March 31, 2003 valuation movement on securities was $37,600,000.

Fair value result on financial instruments. For the three months ended March 31, 2004 fair value result on financial instruments was $51,700,000 representing the decrease in fair value of the embedded derivative on the 5% Mandatory Exchangeable Notes for the period.

Interest expenses. Interest expense for the three months ended March 31, 2004 decreased by 30% to $27,349,000 from $38,902,000 for the three months ended March 31, 2003. This decrease arose primarily from the debt reduction plan that was implemented in 2003.

Exchange gain. MIC had a net exchange gain for the three months ended March 31, 2004 of $14,424,000 compared to a gain of $3,754,000 for the three months ended March 31, 2003. In 2004, the exchange gain was mainly due to the revaluation at the period-end exchange rate of the 5% Mandatory Exchangeable Notes. In 2003, the exchange gain was mainly a result of the weakening of the U.S. dollar against the majority of currencies used by the group.

Charge for taxes. The net tax charge for the three months ended March 31, 2004 increased to $16,702,000 from $10,198,000 in the three months ended March 31, 2003. This increase is due to the increased profitability of our operations in 2003.

Net profit for the period. The net profit for the three months ended March 31, 2004 was $14,730,000 compared to a profit of $26,226,000 for the three months ended March 31, 2003 for the reasons stated above.

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Geographical Segment Information

The table below sets forth our revenues by geographical segment for the periods indicated.

User-specified TAGGED TABLE

Three Months Ended March 31, — 2004 2003
(unaudited) (unaudited)
(in thousands of U.S. dollars)
South East Asia 55,743 41,165
South Asia 30,608 23,099
MIC Asia 86,351 64,264
Central America 68,784 35,221
Of which divested — 5,926
South America 25,014 23,977
MIC Latin America 93,798 59,198
MIC Africa 31,672 17,992
Other 2,038 3,265
Of which divested — 90
Total revenues 213,859 144,719

end of user-specified TAGGED TABLE

The table below sets forth our revenues by geographical segment, in percent of total revenues, for the periods indicated.

User-specified TAGGED TABLE

Three Months Ended March 31, — 2004 2003
(unaudited) (unaudited)
(in thousands of U.S. dollars)
South East Asia 26.1 % 28.4 %
South Asia 14.3 % 16.0 %
MIC Asia 40.4 % 44.4 %
Central America 32.1 % 24.3 %
South America 11.7 % 16.6 %
MIC Latin America 43.8 % 40.9 %
Mic Africa 14.8 % 12.4 %
Other 1 % 2.3 %
Total 100 % 100 %

end of user-specified TAGGED TABLE

Liquidity and Capital Resources

Cash Flows

For the three months ended March 31, 2004, cash provided by operating activities was $75,405,000, compared to $61,984,000 for the three months ended March 31, 2003. The increase is mainly due to increased operating profits and lower interest payments.

Cash used by investing activities was $97,043,000 for the three months ended March 31, 2004, compared to $38,134,000 for the three months ended March 31, 2003. In the three months ended March 31, 2004 MIC used cash to purchase $39,003,000 of property, plant and equipment, and to increase time deposits by $65,567,000.

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Financing activities used total cash of $30,360,000 for the three months ended March 31, 2004, compared with $16,916,000 for the three months ended March 31, 2003. In the three months ended March 31, 2004, as a result of the debt restructuring activities, we repaid debt of $39,720,000 while raising an additional $13,226,000 through financing.

The net cash outflow in the three months ended March 31, 2004 was $51,940,000 compared to a net cash inflow of $7,107,000 for the three months ended March 31, 2003. MIC had a closing cash and cash equivalents balance of $96,889,000 as of March 31, 2004 compared to $77,558,000 as of March 31, 2003.

Investments, Capital Expenditures and Divestments

Investments

On February 5, 2004 MIC acquired 25% of Millicom Tanzania Ltd from the Government of Tanzania, bringing its ownership to 84%. MIC now controls Millicom Tanzania Ltd.

Capital Expenditure

Our capital expenditure by geographical region has been as follows during the periods indicated:

User-specified TAGGED TABLE

For the Three Months Ended March 31, — 2004 2003
(unaudited) (unaudited)
(in thousands of U.S. dollars)
South East Asia 11,285 6,160
South Asia 23,577 2,521
MIC Asia 34,862 8,681
Central America 5,861 4,099
South America 11,364 1,910
MIC Latin America 17,225 6,009
MIC Africa 8,530 2,774
Other 680 105
Total 61,297 17,569

end of user-specified TAGGED TABLE

The main expenditures were for the introduction of digitalization in Latin America, Asia and Africa and the expansion of existing networks both in terms of areas covered and capacity.

We expect to direct our capital expenditures towards the roll out of GSM in Paraguay, Guatemala, Honduras, El Salvador and Pakistan in 2004, and to provide additional capacity to meet expected subscriber demand.

We expect to fund such expenditures mainly from operating cash flow.

As of December 31, 2003, on a consolidated basis, we had total outstanding debt and other financing of $1,276,865,000. Of the total indebtedness of the combined ventures, $644,651,000 represented indebtedness secured by pledged assets, letters of credit or MIC guarantees.

As of March 31, 2004, we had total consolidated outstanding debt and other financing of $1,169,923,000. Of this amount, $569,274,000 represented indebtedness secured by pledged assets, letters of credit or MIC guarantees.

Of the total consolidated outstanding debt and other financing,

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The 2% Senior Convertible PIK Notes were convertible at any time into MIC common stock at a conversion price of $2.69 per share ($10.75 before the February 2004 stock split). On April 26, 2004 MIC called the entire outstanding amount of 2% Senior Convertible PIK Notes Due 2006 (the "2% Notes") in an aggregate principal amount of approximately $160,000 for redemption in cash in accordance with the terms of the Indenture covering the 2% Notes. An amount of $63,371,000 out of the total $63,531,000 2% Notes was converted into MIC shares before April 26, 2004. Following these conversions, the total number of outstanding MIC shares is 89,638,927 shares with a par value of $1.50 each.

Current Liabilities

As of March 31, 2004, MIC had a total of $468,381,000 of current liabilities, including $123,743,000 of current debt and other financing. Management expects a substantial portion of such short-term debt to be extended prior to maturity.

As of March 31, 2004, we had commitments to purchase within one year network equipment, land and buildings and other fixed assets with a value of $109,328,000 from a number of suppliers.

As of March 31, 2004, we had outstanding letters of credit and guarantees of $28,926,000 and $71,564,000, respectively.

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SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the Registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

User-specified TAGGED TABLE

By: MILLICOM INTERNATIONAL CELLULAR S.A. (Registrant) — /s/ BRUNO NIEUWLAND
Name: Bruno Nieuwland
Title: Chief Financial Controller

end of user-specified TAGGED TABLE User-specified TAGGED TABLE

By: /s/ MARC BEULS
Name: Marc Beuls
Title: President and Chief Executive Officer

end of user-specified TAGGED TABLE

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TOC_BEGIN Condensed Consolidated Balance Sheets TOC_BEGIN Condensed Consolidated Income Statements Condensed Consolidated Statements of Cash Flows Condensed Consolidated Statements of Changes in Shareholders' Equity TOC_BEGIN Condensed Consolidated Notes TOC_BEGIN SIGNATURES SEQ=,FILE='QUICKLINK',USER=RGALLAG,SEQ=,EFW="2137579",CP="MILLICOM INT CELLULAR S.A.",DN="1" TOCEXISTFLAG